[PATCH 5/6] sched/deadline,rt: Remove unused functions for !CONFIG_SMP

From: Dietmar Eggemann
Date: Wed Mar 02 2022 - 13:35:15 EST


The need_pull_[rt|dl]_task() and pull_[rt|dl]_task() functions are not
used on a !CONFIG_SMP system. Remove them.

Signed-off-by: Dietmar Eggemann <dietmar.eggemann@xxxxxxx>
---
kernel/sched/deadline.c | 9 ---------
kernel/sched/rt.c | 11 -----------
2 files changed, 20 deletions(-)

diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c
index 3242dd4972e1..93fcef57dd59 100644
--- a/kernel/sched/deadline.c
+++ b/kernel/sched/deadline.c
@@ -723,15 +723,6 @@ void dec_dl_migration(struct sched_dl_entity *dl_se, struct dl_rq *dl_rq)
{
}

-static inline bool need_pull_dl_task(struct rq *rq, struct task_struct *prev)
-{
- return false;
-}
-
-static inline void pull_dl_task(struct rq *rq)
-{
-}
-
static inline void deadline_queue_push_tasks(struct rq *rq)
{
}
diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c
index 14f273c29518..b62e7652464b 100644
--- a/kernel/sched/rt.c
+++ b/kernel/sched/rt.c
@@ -271,8 +271,6 @@ int alloc_rt_sched_group(struct task_group *tg, struct task_group *parent)

#ifdef CONFIG_SMP

-static void pull_rt_task(struct rq *this_rq);
-
static inline bool need_pull_rt_task(struct rq *rq, struct task_struct *prev)
{
/* Try to pull RT tasks here if we lower this rq's prio */
@@ -429,15 +427,6 @@ void dec_rt_migration(struct sched_rt_entity *rt_se, struct rt_rq *rt_rq)
{
}

-static inline bool need_pull_rt_task(struct rq *rq, struct task_struct *prev)
-{
- return false;
-}
-
-static inline void pull_rt_task(struct rq *this_rq)
-{
-}
-
static inline void rt_queue_push_tasks(struct rq *rq)
{
}
--
2.25.1